Use the prime factorization method to find the LCM of the variable expressions.9a, 27ab, 33b
A. 891ab
B. 297a2b
C. 891a2b
D. 297ab
Answer: D
Mathematics
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Solve the problem.The function f(x) = 200(0.5)x/90 models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. Find the amount of radioactive material in the vault after 
Round to the nearest whole number.
A. 225 pounds B. 147 pounds C. 42 pounds D. 44 pounds
Mathematics
Simplify the rational expression completely.
A. 
B. 
C. 
D. - 
Mathematics
Convert to an exponential equation.log 6 = 0.7782
A. 0.778210 = 6 B. 106 = 0.7782 C. 100.7782 = 6 D. 60.7782 = 10
Mathematics
Solve the system of equations.x + 4y + 5z = 31 3y + 5z = 28 z = 5
A. (1, 2, 5) B. (2, 5, 1) C. (2, 1, 5) D. (5, 1, 2)
Mathematics